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ONEOK
ONEOK is a Tulsa-based midstream operator running over 50,000 miles of NGL, natural gas, and refined products pipelines after its 2023 Magellan...
ONEOK
ONEOK was founded in 1906 as Oklahoma Natural Gas Company, a local utility serving the territory that would become its namesake state. Pierce H. Norton II took over as CEO in 2021, following a career at ONE Gas and other energy infrastructure firms. The company underwent a structural separation in 2022, spinning off its regulated utility operations into a standalone public company and retaining the high-growth natural gas liquids and natural gas pipeline businesses under the ONEOK banner. This move erased the legacy distribution utility from the portfolio and refocused the enterprise entirely on midstream infrastructure. The firm operates one of the largest NGL pipeline systems in the United States, connecting the Williston Basin, Mid-Continent, and Permian Basin production zones to the Mont Belvieu fractionation and storage complex on the Texas Gulf Coast. Asset classes in scope include natural gas liquids pipelines, natural gas gathering and processing, fractionation, and transportation. In September 2023, ONEOK closed its $18.8 billion acquisition of Magellan Midstream Partners (per Reuters, 2023), adding refined products and crude oil pipelines to its portfolio and extending its geographic footprint into the Midwest and along the Texas Gulf Coast. This transaction expanded the company's asset base to include a marine terminal business and roughly 25,000 miles of pipelines. Post-Magellan, the combined entity runs more than 50,000 miles of pipelines and operates significant fractionation capacity at Mont Belvieu and Bushton, Kansas. The 2023 acquisition represents one of the largest midstream consolidations of the past decade and followed the 2022 utility spin-off. The company reports its business through three segments: Natural Gas Liquids, Natural Gas Gathering and Processing, and Refined Products and Crude. Norton runs the enterprise from the Tulsa headquarters, and the firm's shares trade on the New York Stock Exchange under the ticker OKE. ONEOK's structure is distinct among large-cap energy infrastructure companies in its near-total focus on NGL value chains. Unlike integrated competitors such as Energy Transfer or Enterprise Products Partners, ONEOK historically avoided crude oil and refined products until the Magellan acquisition, and even post-merger, NGLs remain the dominant earnings driver. The 2022 utility spin-off also left the company as a pure C-corporation with no regulated rate-base exposure, aligning its governance and capital allocation entirely with midstream free cash flow generation and return of capital to shareholders.
General information
Firm type
Asset Manager
Year founded
1906
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Tulsa
Corporate office
Tulsa, OK, United States
Principals
Pierce H. Norton II
President & Chief Executive Officer
Walter S. Hulse III
Chief Financial Officer & Executive Vice President, Investor Relations and Corporate Development
Sector focus
Frequently asked questions
What does ONEOK do?
ONEOK is a midstream energy infrastructure company. It moves, processes, and stores natural gas and natural gas liquids. After acquiring Magellan Midstream Partners in 2023, it also transports refined products and crude oil. The company operates over 50,000 miles of pipelines.
How did the 2022 utility spin-off change ONEOK?
The spin-off removed the legacy Oklahoma natural gas distribution utility from the company. The separated entity became the standalone public company ONE Gas. ONEOK retained the midstream assets, becoming a pure-play pipeline and processing business. This removed regulated rate-base earnings from the financial profile.
What is ONEOK's connection to the Mont Belvieu complex?
ONEOK is a major mover of NGLs into the Mont Belvieu fractionation and storage hub on the Texas Gulf Coast. It owns fractionation facilities there and in Kansas. Mont Belvieu is the pricing and physical delivery point for much of the US NGL market. The firm's pipeline network feeds production from the Williston, Mid-Continent, and Permian basins into this hub.
Who is ONEOK's CEO and what is his background?
Pierce H. Norton II became CEO in 2021. Before ONEOK, he was CEO of ONE Gas, the regulated utility that was ultimately spun off. His career has centered on energy infrastructure and midstream operations. He succeeded Terry K. Spencer in the role.
Is ONEOK a family office or an operating company?
ONEOK is not a family office. It is a publicly traded C-corporation listed on the New York Stock Exchange under the ticker OKE. It operates midstream energy infrastructure assets across multiple US basins. No family ownership control is present in its governance structure.
What was the significance of the Magellan Midstream acquisition?
The $18.8 billion deal, which closed in September 2023, diversified ONEOK beyond NGLs and natural gas. It added refined products and crude oil pipelines, along with a marine terminal business. The transaction roughly doubled the company's pipeline mileage. It made ONEOK one of the largest diversified midstream operators in the country.
Where are ONEOK's assets concentrated?
Production-side assets sit in the Williston Basin, the Mid-Continent region, and the Permian Basin. Transportation assets connect these zones to the Gulf Coast. Post-Magellan, the network extends deeper into the Midwest and across multiple Texas Gulf Coast assets. The headquarters remains in Tulsa, Oklahoma.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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